213223122113101 has 4 divisors (see below), whose sum is σ = 214902044334592. Its totient is φ = 211544199891612.

The previous prime is 213223122113077. The next prime is 213223122113129. The reversal of 213223122113101 is 101311221322312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213223122113101 - 2⁹ = 213223122112589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213223122113501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839461110555 + ... + 839461110808.

It is an arithmetic number, because the mean of its divisors is an integer number (53725511083648).

Almost surely, 2^{213223122113101} is an apocalyptic number.

It is an amenable number.

213223122113101 is a deficient number, since it is larger than the sum of its proper divisors (1678922221491).

213223122113101 is a wasteful number, since it uses less digits than its factorization.

213223122113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678922221490.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 213223122113101 its reverse (101311221322312), we get a palindrome (314534343435413).

The spelling of 213223122113101 in words is "two hundred thirteen trillion, two hundred twenty-three billion, one hundred twenty-two million, one hundred thirteen thousand, one hundred one".